Synthesis of 2(5H)-Furanones and 2-Cycloalkenones and Their Fungicidal Activities

2(5H)-Furanone 및 2-Cycloalkenone 유도체의 합성과 살균활성

  • 허정녕 (한국화학연구원 신약연구단) ;
  • 송영섭 (한국화학연구원 신약연구단) ;
  • 박노균 (한국화학연구원 신약연구단) ;
  • 최경자 (한국화학연구원 신화학연구단) ;
  • 장경수 (한국화학연구원 신화학연구단) ;
  • 김범태 (한국화학연구원 신약연구단)
  • Published : 2007.03.30

Abstract

We have developed an efficient synthesis of 2(5H)-furanones using the microwave-promoted Suzuki-Miyaura coupling reaction and evaluated their fungicidal activities against six fungal pathogens in vivo. In addition, 2-cyclopentenones or 2-cyclohexenones possessing one or two additional methylene groups instead of the oxygen in the 2(5H)-furanone skeleton were also prepared by using the similar method. As the results of in vivo fungicidal screening against 6 plant diseases, a few derivatives displayed specific fungicidal activities against rice blast and tomato late blast. Further studies toward the optimization of the chemical structures are necessary for the development of novel fungicides with high potency.

살균활성을 보이는 천연물인 incrustoporin(1)의 기본골격인 2(5H)-furanone을 포함하는 유도체 2를 microwave를 이용한 Suzuki-Miyaura coupling 반응으로 합성하였고, 또한 furanone의 화학구조에서 산소원자를 탄소원자로 치환한 2-cycloalkenone 유도체 3 및 4를 유사한 방법으로 합성하였다. 합성한 이들 유도체들의 살균활성을 6종의 식물병원균에 대하여 조사한 결과, 벼 도열병 및 토마토 역병에 대하여 다소 방제효과를 나타내었다. 따라서 이들 유도체들은 다양한 구조변화를 통한 살균제 개발에 활용할 수 있을 것으로 생각된다.

Keywords

References

  1. Bartlett, D. W., J. M and J. R. Godwin, A. A. Hall, M. Hamer and B. Parr-Dobrzanski (2002) The strobilurin fungicides, Pest Manag. Sci. 58:649-662 https://doi.org/10.1002/ps.520
  2. Pour, M., M. Spulak, V. Balsanek, J. Kunes, V. Buchta and K. Waisser (2000) 3-Phenyl-5-methyl-2H,5H-furan2-ones: Tuning antifungal activity by varying substituents on the phenyl ring. Bioorg. Moo. Chem. Lett. 10:1893-1895 https://doi.org/10.1016/S0960-894X(00)00376-0
  3. Sauter, H., W. Steglich and T. Anke (1999) Strobilurins: Evolution of a new class of active substances. Angew. Chem. Int. Ed. 38:1328-1349 https://doi.org/10.1002/(SICI)1521-3773(19990517)38:10<1328::AID-ANIE1328>3.0.CO;2-1
  4. Song, Y S., B. T. Kim and J.-N. Heo (2005) An efficient synthesis of 2-ary1-3-methoxy-2-cyc1oalkenones via Suzuki-Miyaura reaction under microwave irradiation. Tetrahedron Lett. 46:5987 - 5990 https://doi.org/10.1016/S0040-4039(04)02606-1
  5. Song, Y. S., Y.-J. Lee, B. T. Kim and J.-N. Heo (2006) An efficient procedure for the synthesis of 3-aryl-4methoxy-2(5H)-furanones by using the microwave-promoted Suzuki-Miyaura coupling reactions. Tetrahedron Lett. 47:7427 -7430 https://doi.org/10.1016/j.tetlet.2006.08.052
  6. Worthington, P. A. (1988) Antibiotics with antifungal and antibacterial activity against plant diseases, Nat. Prod. Rep. 5:47 -66 https://doi.org/10.1039/np9880500047
  7. Yonehara, H and N. Otake (1965) Biological and chemical reconstruction of blasticidin S. Antimicrob. Agents and Chemother. 5:855-857
  8. Zapf, S., T. Anke and O. Sterner (1995) Incrustoporin, a new antibiotic from Incrustoporia cameola (Bres.) Ryv. (Basidiomycetes). Acta. Chem. Scand. 49:233-234 https://doi.org/10.3891/acta.chem.scand.49-0233